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Jewelry Cleaning Myths: Toothpaste, Baking Soda, Vinegar and Bleach
Most home cleaning hacks promise a quick sparkle. Several of them quietly scratch, dull or weaken fine jewelry. Here's what to stop doing โ and the simple method that works.
Written by the Mapple Gems workshop, Surat ยท Updated 25 September 2026
Short answer
Avoid toothpaste and baking soda on gold โ both are abrasive and leave fine scratches. Skip bleach and chlorine entirely, as they can weaken gold alloys. Vinegar and lemon add nothing a mild soap doesn't. The method that works for moissanite, diamond and solid gold is warm water, a drop of mild washing-up liquid and a soft brush from underneath.
Cleaning hacks spread because they seem to work: rub with toothpaste and the piece looks brighter. What you're often seeing is a freshly abraded surface โ a thin layer of polish removed along with the dirt.
The myths, checked
| Hack | What actually happens | Verdict |
|---|---|---|
| Toothpaste | Abrasives scratch soft gold (around Mohs 2.8) | Avoid |
| Baking soda paste | Mildly abrasive; dulls polished gold | Avoid on gold |
| Vinegar or lemon | Mild acid; no better than soap | Unnecessary |
| Bleach / chlorine | Can attack and weaken gold alloys | Never |
| Paper towels | Wood fibres can micro-scratch | Use a soft cloth |
| Warm soapy water + soft brush | Lifts oil and residue safely | Use this |
From the bench in Surat
Here's why stones look dull in the first place: it's almost never the top of the stone. It's a film of lotion, soap and skin oil on the underside โ the pavilion โ which is where light is supposed to bounce back up. A scrubbing paste on the top does nothing for that. A soak in warm soapy water loosens the film, and a soft toothbrush worked from underneath clears it. Moissanite and diamond are both far harder than anything in a household kitchen, so the stones are never the worry; the soft gold around them is. That's why the gentlest method is also the one that works best.
The method that works
- Warm (not hot) water with a drop of mild washing-up liquid.
- Soak for 10โ15 minutes.
- Brush gently from underneath with a soft toothbrush.
- Rinse over a bowl, never an open drain.
- Pat dry with a soft, lint-free cloth.
For silver specifically, see how to clean silver jewelry; for deep cleaning, ultrasonic cleaners.
Cleaning checklist
- Stop using toothpaste on gold.
- Skip baking soda pastes on polished pieces.
- Never use bleach or chlorine.
- Use warm soapy water and a soft brush.
- Clean from underneath the stones.
- Dry with a soft cloth, not paper.
- Rinse over a bowl.
- Have settings checked yearly.
Cleaning myth FAQs
Is toothpaste safe for cleaning jewelry?
No. Toothpaste contains abrasives that leave fine scratches on soft gold. Use warm soapy water instead.
Can I clean gold with bleach?
No. Bleach and chlorine can attack gold alloys and weaken the metal over time.
Why does my moissanite look dull?
Usually a film of lotion or oil on the underside of the stone. A warm soapy soak and a soft brush from underneath restore the sparkle.
Is baking soda safe for jewelry?
It's mildly abrasive and can dull polished gold, so it's best avoided on fine jewelry.
Easy to care for
Moissanite jewelry in solid gold or 925 silver, made to order in our Surat workshop.
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